Product Details
The ABB 3BDH000031R1, also cataloged as the 3BDH000031R1 Communication Module, operates as a dedicated hardware component for dual-channel serial communication execution within ABB control platforms. It processes Modbus protocol data streams across two independent channels, interfacing directly between field instrumentation and the controller backplane while providing galvanic protection across serial line paths.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 3BDH000031R1 |
| Brand | ABB |
| Origin | Standard Industrial |
| Weight | 0.145 kg |
| Dimensions | 125 x 155 x 28 mm |
| Operating Temp | -40 to +70 deg C |
| Power Consumption | 2.5 W |
| Power Supply Voltage | 24 VDC |
| Communication Protocol | Modbus |
| Number of Channels | 2 |
| Communication Speed | Up to 192 kbps |
| Isolation Voltage | 2500 V |
| Storage Temperature | -40 to +85 deg C |
| Humidity | 0 to 95% RH (non-condensing) |
Galvanic Isolation and Firmware Flash Compatibility
The 3BDH000031R1 communication module incorporates 2500 V galvanic isolation between field device terminals and internal controller electronics to suppress common-mode electrical transients and ground loops. Channel-to-channel communication routines execute over two independent serial interfaces operating at speeds up to 192 kbps. Integrated firmware flash storage maintains protocol stack parameter configurations across system boot cycles, ensuring deterministic Modbus packet parsing without backplane execution delays.
Frequently Asked Questions
Q: What level of electrical protection is provided on the serial communication channels?
A: The module provides 2500 V isolation between connected field devices and the system controller to shield internal hardware from high-voltage faults and transients.
Q: Can the two serial channels operate simultaneously under different baud rates?
A: Both channels operate independently up to 192 kbps, allowing asynchronous Modbus communication across separate serial line segments.
Q: How is power delivered to the 3BDH000031R1 communication module?
A: The module operates on a standard 24 VDC external power supply with a maximum power consumption rating of 2.5 W.
Field Installation Guidelines
- Mount the module securely on a standard DIN rail inside the control cabinet using the integral retention mechanism.
- Disconnect the 24 VDC power supply before wiring field communication terminals to avoid short circuits.
- Route serial communication cabling in separate wire ducts away from high-voltage AC power lines and motor drives.
- Maintain a 360-deg braid shield ground connection at the cabinet entry plate to maximize noise immunity.
- Verify that operating ambient temperatures inside the enclosure remain within the -40 to +70 deg C specification.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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